2007 GMC SIERRA CLASSIC lock

For regular cab models, the equipment you will
need is behind the passenger’s seat. For extended
and crew cab models, the equipment is on the shelf
behind the passenger’s side second row seat.
1. If there is a cover, move the seats forward
and turn the wing nut on the cover
counterclockwise to remove it. For crew cab
models, pull up the second row seat with
the loop at the base of the seat cushion to
access the tools.
2. Turn the knob on the jack counterclockwise to
lower the jack head to release the jack from
its holder.
3. Remove the wheel blocks and the wheel
block retainer by turning the wing nut
counterclockwise.
4. Remove the wing nut used to retain the
storage bag and tools by turning it
counterclockwise.
You will use the jack handle extensions and the
wheel wrench to remove the underbody-mounted
spare tire.A. Spare Tire (Valve
Stem Pointed Down)
B. Hoist Assembly
C. Hoist Cable
D. Tire/Wheel Retainer
E. Hoist Shaft
F. Hoist End of
Extension ToolG. Hoist Shaft
Access Hole
H. Wheel Wrench
I. Jack Handle
Extensions
J. Spare Tire Lock
(If Equipped)
568

1. Open the spare tire lock cover on the bumper
and use the ignition key to remove the lock,
if equipped with a spare tire lock (J). To
remove the spare tire lock, insert the key, turn
and pull straight out.
2. Assemble the wheel wrench (H) and the
two jack handle extensions (I) as shown.3. Insert the hoist end
(open end) (F) of the
extension through
the hole (G) in
the rear bumper.
Be sure the hoist end of the extension (F)
connects to the hoist shaft (E). The ribbed
square end of the extension is used to lower
the spare tire.
569

4. Turn the wheel wrench (H) counterclockwise
to lower the spare tire to the ground. Continue
to turn the wheel wrench until the spare tire
can be pulled out from under the vehicle.
If the spare tire does not lower to the ground,
the secondary latch is engaged causing
the tire not to lower. SeeSecondary Latch
System on page 580.
5. Use the wheel
wrench hook which
allows you to
pull the hoist cable
towards you to
assist in reaching
the spare tire.6. Tilt the retainer (D)
at the end of the
cable (C) when the
tire has been
lowered, so it can
be pulled up through
the wheel opening.
7. Put the spare tire near the at tire.
570

Removing the Flat Tire and
Installing the Spare Tire
Use the following pictures and instructions to
remove the at tire and raise the vehicle.
The tools you will be using include the jack (A),
the wheel blocks (B), the jack handle (C), the jack
handle extensions (D), and the wheel wrench (E).1. If your vehicle has
wheel nut caps,
loosen them
by turning the
wheel wrench
counterclockwise.
If the vehicle has a center cap with wheel nut
caps, the wheel nut caps are designed to
stay with the center cap after they are
loosened. Remove the entire center cap.
571

If the wheel has a smooth center cap, place
the chisel end of the wheel wrench in the
slot on the wheel, and gently pry it out.2. Use the wheel wrench and turn it
counterclockwise to loosen the wheel nuts.
Do not remove the wheel nuts yet.
572

4. Make sure the jack head is positioned so that
the rear axle is resting securely between the
grooves that are on the jack head.
5. Turn the wheel wrench clockwise to raise the
vehicle. Raise the vehicle far enough off the
ground so there is enough room for the spare
tire to t under the wheel well.
Rear Position – 2WD Pickup ModelsRear Position – All Other Models
575

11. Turn the wheel wrench counterclockwise to
lower the vehicle. Lower the jack completely.
Front Position - 2WD 1500 ModelRear Position
578

{CAUTION:
Incorrect wheel nuts or improperly
tightened wheel nuts can cause the wheel
to come loose and even come off. This
could lead to an accident. Be sure to use
the correct wheel nuts. If you have to
replace them, be sure to get new GM
original equipment wheel nuts. Stop
somewhere as soon as you can and have
the nuts tightened with a torque wrench to
the proper torque specication. See
Capacities and Specifications on page 609
for wheel nut torque specication.
Notice:Improperly tightened wheel nuts can
lead to brake pulsation and rotor damage.
To avoid expensive brake repairs, evenly
tighten the wheel nuts in the proper sequence
and to the proper torque specication. See
Capacities and Specifications on page 609for
the wheel nut torque specication.12. Tighten the nuts rmly in a crisscross
sequence as shown by turning the wheel
wrench clockwise.
When you reinstall the regular wheel and tire, you
must also reinstall either the center cap, or
bolt-on hub cap, depending on what your vehicle
is equipped with. For center caps, place the
cap on the wheel and tap it into place until it seats
ush with the wheel. The cap only goes on one
way. Be sure to line up the tab on the center cap
with the indentation on the wheel. For bolt-on
hub caps, align the plastic nut caps with the wheel
nuts and then tighten by hand. Then use the
wheel wrench to tighten.
579